resemble-ai/chatterbox

Chatterbox is a multilingual text-to-speech system that synthesizes speech in over 20 languages using the S3Gen meanflow architecture. It supports various model backends, including Llama and GPT-2 variants, to offer different performance and size options such as Turbo and Nano. The system provides Gradio-based interfaces and example scripts for inference, with updated dependencies ensuring compatibility with modern Python versions.

Chatterbox now supports multilingual text-to-speech synthesis via the new ChatterboxMultilingualTTS class, which handles 22 languages and allows users to opt into a v3 checkpoint. The underlying audio generation engine has been upgraded to S3Gen, introducing a meanflow mode that modifies the decoder and flow-matching inference to improve generation quality. Additionally, the T3 model backend now supports GPT-2 architectures (Medium and Small) alongside Llama, enabling smaller model variants like Chatterbox Nano.

src/chatterbox · high confidence

This update introduces new Gradio applications and example scripts for the Chatterbox-Turbo and Chatterbox-Nano models, including a Turbo-specific UI with paralinguistic tag support and a multilingual V3 app with 23+ language defaults. The standard TTS example scripts (example\_tts.py, example\_vc.py) and the main Gradio app (gradio\_tts\_app.py) have been updated to support automatic device detection (including MPS for Mac) and new sampling parameters (min\_p, top\_p, repetition\_penalty). The legacy voice\_conversion.py script has been removed, and the README has been updated to reflect the new model zoo and documentation.

(repo-wide) · high confidence

The project now requires Python 3.10 or higher and updates core dependencies to support newer Python versions, including conditional version ranges for NumPy (1.x for \<3.13, 2.x for 3.13+) and PyTorch/Torchaudio (2.6.0 for \<3.14, 2.9.0+ for 3.14+). Librosa is upgraded to 0.11.0, and the Transformers library is updated to version 5.2.0. New dependencies added include Gradio 6.8.0, safetensors, spacy-pkuseg, pykakasi, and pyloudnorm, while resemble-perth is now installed directly from its Git repository.

(dependencies) · high confidence

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

• First survey — no prior run to compare against. CAI 65.

• Code Health 99
• Architecture 100
• Maturity 63
• Readiness 47
• Security 97

• 42 commits — 37 feature/other, 5 fixes

• (root) — 28 commits
• src/chatterbox — 10 commits
• (repo) — 4 commits

• fix: Fix ReadMe Banner Image (#381)
• fix: Fix link in readme
• fix: Potentially fix CUDA error (#114)
• fix: Update README.md with fixed image link (#236)
• fix: fix: add map_location to torch.load for CPU/MPS support in multilingual model (#410)
• change: Add Podonos evaluation section and acknowledgement to README (#456)
• change: Add opt-in v3 multilingual checkpoint, skip analyzer for v3 (#516)
• change: Apply CFG optionally based on cfg_weight
• change: Broaden dependency version ranges for Python 3.13+ compatibility (#495)
• change: Chatterbox Turbo 350M Model (#380)
• change: Clarify OS & Py version; Adjust dependencies (#138)
• change: Create example_for_mac.py
• change: Enable usage of Min_P Sampler, modify other sampler settings (#155)
• change: Feature: Add cpu mps support (#35)
• change: Feature: Update example scripts, add example wavs, add info on watermarking, safetensor in VC model (#82)
• change: Make russian-text-stresser optional (#376)
• change: Merge pull request #40 from serome111/master
• change: Merge pull request #75 from resemble-ai/disc
• change: Merge pull request #80 from resemble-ai/optinal_cfg
• change: Merge pull request #81 from resemble-ai/update_safetensor
• …and 22 more

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

resemble-ai/chatterbox was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point a surveyor at a repository you know and see whether you agree with it.